Just took delivery of a 2007 14k mile 650i conv. really like the car so far but only drove it for 2 days before heading abroad for work

anyhoo, just wanted to say, hi. and to ask if there are any threads here on soft top maintenance? i.e. is there sprays available to keep it waterproof etc: etc: excuse my ignorance. but a convertible was never really on my list living in scotland where you can only use it a couple of days a year